The key art lines up with a previous report that the reported RPG will feature playable Mario characters and Rabbids dressed as Mario characters. WWG’s report also corroborates earlier rumors that Kingdom Battle is set for a possible August release.

Additionally, NintendoWorldReport has published what it claims are images used as part of the pitch and description of Kingdom Battle. The presentation says the game will be a mix of turn-based battles and exploration through four worlds in an approximate 20-hour story campaign. According to the slides, the game is being developed by Ubisoft Paris and Milan. The reports also claim Kingdom Battle will be announced at E3.

IGN has reached out to Nintendo and Ubisoft for comment about these reports and will update this article should they respond.

For more on the Nintendo Switch’s library, check out IGN’s confirmed and rumored games coming to Switch. And for everything you need to know about this year’s E3, stay tuned to IGN’s E3 2017 hub for more.

Sam Stewart is a freelance writer for IGN. You can follow him on Twitter.